Device for cooling gas engines



N. J. BENSON DEVICE FOR COOLYYNG GAS ENGINES Filled may 2, 1921 2Sheets-$hget 1 gvwwnto'a 115 J gain-021?- N; J. BENSON Oct. 23, 1928.1,688,447

DEVICE FOR COOLING GAS ENGINES Filed May 2, 1927 2 Sheets-Sheet 2 l v l'l i;

Patented Get. 23, 1928.

UNlTED STATES NELS J. BENSON, OF GENEVA, IOWA.

DEVICE FOR COOLING GAS ENGINES.

Application filed May 2,

The present invention is directed to improvements in devices for coolinggas enines. is The primary object of the invention is to provide adevice of this character so constructed that. air will be pumped intothe water jacket of the'engine in order that the water will. bemaintained in acool state by the incoming air which will also cause thewater to circulate. Another object of the invention is to provide adevice of this kind which will eliminate the usual cooling fan.

Still another object of the invention is to utilize the air forconducting moisture to the intake manifold of the engine for mi turewith the fuel to aid in the carburetion thereof.

1n the accompanying drawings: Figure 1 is a side view of an engine,showing the device in place thereon.

Figure 2 is a top plan view of the same. Figure 3 is a partial Verticalsectional. view through one of'the engine cylinders.

Figure l is a front view of the air pumps and their driving connections.

Figure 5 is a fragmentary perspective view of the air manifold.

Referring to the drawings, 1 designates a gas engine,-2 the radiator and3 the fan driving shaft, the engine being equipped with the usual jacket& providing tl e water space 5, as customary. 7 Suitably mountedadjacent the radiatorQ is pair of air pumps 6, which have the lower endsof their piston rods 7 pivotally.

connected to the ends of the beam 8, said.

beam being pivotally connected intermediate its ends to bracket 9 whichmay besecured to the engine base in any desired manner.

A disk 10 is fixed to the shaft 3 in lieu of the usual fan and haspivoted eccentrically thereto the upper end of the pitman 11, the lowerend of which is pivotally'connected to the beam 8 upon one side of itspivotal connection with the bracket 9. The shaft 3 is driven from theengine shaft by the usual.

1927. Serial No. 188,312.

fold having extending therefrom branches 16, preferably fourinnumber,-said branches being provided with perforations 17. Leading fromeach pump cylinder 6 is an air conducting pipe 18 which connects withthe respective manifolds in order that air from the pumps will bedischarged into the manifolds and theirbran'ches. A pipe 19 is lead fromone of the pipes 18 and connects with the crank case 20 in order thatair will enter the crank case to cool the air therein, this pipe beingpreferably extended to the breather pip A pipe 22 is provided'and hasone end fitted to. the radiator cap 23 and its other end fittedto theintake manifold 24 in order to conduct moist air from the radiator intosaid intake manifold;

It will be obvious that when the engine is in motion that the shaft 3will impart rotary motion to the disk 10 through the medium ofthe'pitman 11 the beam 8 will be rocked, thus reciprocating the pistons25 in the cylinder 6. Air compressedby the pistons upon the up strokewill be forced from the cylinders through the pipes 18 and into therespective manifolds 14 and branches 16. The air pass-' ing from theperforations of the manifolds and branches will not only cool the Waterin the space 5 but Will also aid in circulat ing the water therein.

Having thus described the invention, I claim: 1 q

1. In combination with a gas engine, air pumps operable by the. engine,manifolds in V the water jacket of the engine and having branchescarried thereby, and means for conducting air from the pumps into themanifold and branches for discharge from the branches into the waterjacket.

2. In combination with a engine and its fan shaft,a disk fixed to thefan shaft, pumps associated with the engine, a beam, a pitman connectingthe beam and disk, pistons'in the pumps, rods for the pistons havingpivotal connection with the beam, and means for conducting air from thepumps .to the water jacket of the engine during operation of the beam- 1In testimony whereof I affix my signature.

NELS J. BENSON.

